Albert m



(Nomaden) A. Mv. BURRITT.

` FIRBEXTINGUISHER ALARM APPARATUS. N01.z'10,p\1.9@ Patented Jan. 2, 188.3.

N. PETERS. Phula'Liumgl-.xphen Wnshngmm D. c.

NTTED STATES PATENT OFFICE...

ALBERT M. BURRITT', OF WATERBURY, CONNECTICUT, ASSIGNOR TC TUE A. BURRITT HARDWARE COMPANXQYOF SAME PLACE.

FIRE-EXTINGUI'sHi-:R ALARM APPARATUS.

SPECIFICATION forming vpart of4 Letters Patent No. 270,010, dated l Application tiled October 14', 1882. (No model.)

January 2, 1883,

To all whom it may concern:

Beit known that I, ALBERT M. BUaRrr'r, of Waterbury,`in the county of New Haven and State of Connecticut, have invented new Iml provements in Fire-EXtinguisherAlarm Apparatus; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon. to-be a full, clear, and exactvdescripro tion ofthe same, and which said drawings constitute part of this speciiication, and represent, i

Figure 1, a sectional side view; Fig. 2, a transverse section on line m.

15 This invention relates to a device'to be attached to that classof tire-extinguishing ap paratus which consists in an arrangement of tubing leading from a watcrsupp1y around an v apartment to he protected, with` distributers 2o at different points in the apartment, and which are automatically opened by heat generated from an accidental tire occurring in an apartment, and so that when the distributors are open the water coming through the tubing will be distributed in the apartment to extinguish` the tire, the object of the device being to sound an alarm when the distributer is opened or the tiow'of water begins. As the ipipes for thedistribution of water are usually 3o in connection withthe supply for other purposes, the water-hammer produced by a sudden cutting ott' of the water is sufficient to operate an alarm device which is inconnection with the column of water, so that a sudden 3 5 movementupon the waterwilloperateit. Hence it is necessary that some provision he made to prevent the action ot' the water-hammer upon the alarm device, in order to make such a device a success.

4o The object of my invention is a construction of valve so that the alarm device will not be aiected by the water-hammer. To that end my invention consists in arranging in the water-way a hollow cylinder, substantially open at its two endsone end to rest upon a seat in the water-way like a valve-the cylinder hung in connection `with an alarm apparatus, so as to turn from its position in line withthe ow of water, away from its seat, toa position 5o atsubstantially right angles therewith, comman.

bined with a valve within said cylinder, arranged to rest at its lower end, but of little greater specitic gravity than that of the water, with a small aperture through the valve, so that an equilibrium will be producedhy the standing water upon the valve, and yet when the flow is opened the valve will he thrown to the opposite end of the cylinder, causing the cylinder to turn and sound the alarm, as more fully hereinafter described. 6o

A represents the passage through which the waterows tosupply thedistributers, audopens into a chamber, B. From this chamber is an outlet, C, which leads to the distributing-pipes. At the entrance ot' the passage A into the 65 c hamber B a valve-seat, a, is formed.

D is a hollow cylinder, of substantially the diameter of the passage A, and constructed Vwith an annular ilangeor projection, b, so that the cylinder will rest upon the valve-seat a, 7o as seen in Fig. l. At the lower end of the cylinder is an internal annular flange, e, and at the upper end a corresponding internal annular tlange,f. The cylinder Dis hung at its lower end to a yoke, E, which is made fast to a transverse shaft, l", and upon which shaft as 'a center the cylinder may be turned from its position over the water-passage A into. the chamber B, as' indicated in broken lines, Fig. l. The shaft F extends outside the chamber 8o B, and there carries a cam, 11 which stands in line with one arm, i, oi' a lever hung upon a fulcrum, l, the other arm, lm, provided with a latch-like notch, n. i

To the shaft Fa bent arm, H, extends into connection with a weight or spring-rod, L. The rod L is hung to one arin, r, of a lever, the other arm, s, ot' which engages the notch or latch n of the lever m t, and so that when the cylinder stands in its position in the 'water- 9o way the lever i s will lioldthe weight-rod L suspended by means ofthelatch-lever ont; but

as the cylinder begins to rise from its seat the cam It bears against the arm 'i ofthe latchlever and turns the'arm m to disengage the 95 latch from the arm s of the lever or trip, and thus frees the weight-lever from its suspension, allowing it to fall, and in so falling completes the turn of the cylinder andalso causes the alarm to besounded. This alarm may be roo made through a lever, l", or otherwise, in conneetionwith the weight-rod L or other part ot the mechanism.

Within the cylinder D is a valve, R, which is of somewhat less diameter than the internal dianleter ot' the cylinder, alld rests on the lower liange, e, but so as to be moved freely up and down ill the cylinder. Through this valve are one or nlore small apertures, t, through which the water will flow to lill the chamber above and pipes beyond the valve, and establish an equilibrium upon the valve. In that condition the valve will rest upon its seat c,- but if at any time the force of water-ham mer comes upon the water in lhe passage A, it will be received by the valve R, and that valve, beillg of but little greater specific gravity tllall that ot' water, will be thrown up in the cylinder by the force of water-hammer and away from its seat, to wllich it will return as soon as the impulse given to it by the water-hailinler has passed away; but it the tlow ot' water through the passage A be opened as to supply the distributers, then the escape is greater than the apertures'in the valve It. Hence that valve will, by the force ot' the tlow, be driven to the opposite end of the cylinder, as indicated in broken lines, alld against the flange f at that end of the cylinder, which will then apply the force of the tlow to the cylinder and cause it to rise 'from its seat, and ill so rising will trip the latch t' m and bring-the weight or spring in connection witll the rod L .upon the lever H, whicll will quickly throw the cylinder back away from the water-way and into the chamber B, as seen in broken lines, Fig. l, thus leaving the passage clear for the iiow ot' water. Were it not for this arrangement ot' the free valve and cylinder, or, in other words, it' the valve were made fast to the alarmv device, the water-hammer would frequently cause sutlcient movement otl the valve to trip the alarm apparatus and solllld the alarm; but, by the employment ot' the hollowT open cylinder 'in connection with the apparatus, and combining rthe free.valve therein to receive the waterhainnler and the tirst impulse ot' the flowing water, these difculties alld possible accidents are entirely overeonle.

Instead of making apertures ill the valve R for the passage of the-water,it may be made to so loosely tit the seat as to permit the necessary liow of water around it instead ot' through it.

I have represented a tripping apparatus wllich works practically ill connection with the cylinder; but it will be understood that other mechanism may be employed, to be tripped in substantially the sa me manner, to operate the alarm.

I claim*- l. In a fire extinguisher alarm apparatus, the combination of the hollow cylinder, open at both ends, one end arranged upon a seat in the water-way, afree valve within said cylinder, and resting at a point near the seat ot' the cylinder in the Water-way, with a stop in the cylinder above, so as to permit movement of the valve within alld independent of the cylinder, the valve constructed for passage ot Water from the waterway to the chamber above it, by

which an equilibrium of pressure upon the' valve in the standing water will be produced, and -an alarm mechanism, substantially such as described, in connection with the said cylinder, whereby the lnovement of the cylinder produced by the rise ot` the valve within the cylinder will trip the said apparatus, substantially as described.

2. In a lire -extinguisher alarm apparatus, the combination ot' a hollow cylinder, hung in a chamber into wllich the water way opens, and seated against the intiow of water, a-t`ree valve within said cylinder arranged upon a seat near the lower end ot' the cylinder `and so as to move within lthe cylinder to a stop at a point above, the said cylinder hung upon a shaft at right angles to the axis ot' the cylinder, and upon which shaft as a center the said cylinder will turn from its position ofclosing the water-way into the' chamber above alld away from the water-way, alld mechanism, substantially such as dcscribed,in connection with said shaft, whereby the turning of the shaft by the movement ot' the cylinder will trip said nlechanism to sound all alarm, substantially as described.

3. ln a re extinguisher alarm apparatus, the combination of a hollow cylinder, hung ill a chamber into which the. water way opens, and seated against the inflow of water, a free valve within said cylinder arranged upon the seat near the lower end lot' the cylinder so as to move within the cylinder to a stop at a poillt above, the said cylinder being hung upon a shaft atright angles to the axis ofthe cylinder, upon which shaft as a center the said cylinder will turn from its position of closing the waterway into the cllalnber, to a position above and away from the water-way, a spring oreqllivalent mechanism, and a trip to suspend said rod, a cam on the shaft to release the said trip, and al1 arm extending from said shaft to said rod, whereby when the weight or spring is tripped the power of that weight or spring will be applied to the shaft to turn the cylinder, substantially as described.

ALBERT M. BURRITT. Witnesses J. B. DOHERTY, E. J DAVIS.

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